From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Fri, 26 Dec 2008 14:08:55 +0000 (+0100)
Subject: locking, percpu counters: introduce separate lock classes
X-Git-Tag: v2.6.29-rc1~226^2^3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea319518ba3de282c13ae1cf4bf2215c5e03e67e;p=pandora-kernel.git

locking, percpu counters: introduce separate lock classes

Impact: fix lockdep false positives

Classify percpu_counter instances similar to regular lock objects --
that is, per instantiation site.

The networking code has increased its use of percpu_counters, which
leads to false positives if they are treated as a single class.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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